Vertical scrollbar goes up and down

codemirror / codemirror5

In-browser code editor (version 5, legacy)

http://codemirror.net/5/

MIT License

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Vertical scrollbar goes up and down #676

Closed peterkroon closed 12 years ago

peterkroon commented 12 years ago

I was unable to set this demo up at JSBin so I had host it myself. I used the development snapshot. Go to: http://5060.nl/codemirror/CodeMirror2/mode/javascript/index.html

Grab the scroller on the vertical scrollbar
Drag it downwards -> Firefox sometimes stop scrolling or gets very slow.
When reaching the bottom of the scrollbar keep the mousedown and move the cursor just below the vertical scrollbar and right of the horizontal scrollbar. In Chrome the scoller moves up and down repeatedly.

peterkroon commented 12 years ago

In addition: I used the same settings as on http://codemirror.net/mode/javascript/index.html I just placed the entire codemirror.js file in the textarea and replaced < with <

peterkroon commented 12 years ago

In even more addition: This does not happen when you paste the lib in the editor. Scrolling seems fine then.

peterkroon commented 12 years ago

Update, I've altered the demo so that it's using the same codemirror.js file as on http://www.codemirror.net/

marijnh commented 12 years ago

Could you try to see if you can still reproduce with that patch? (I can't, but I could only reproduce intermittently before, so I'm not sure I really got to the root of it.)

peterkroon commented 12 years ago

Fixed!

peterflynn commented 12 years ago

I can confirm fixed too -- I was seeing this in Chrome just by pasting codemirror.js into the theme.html demo and then dragging the thumb downwards quickly. It reproduces consistently for me up through 853794a but no longer repros in c61b8cd.

peterkroon commented 12 years ago

OK! Well, I din't try the theme demo. Thanks for confirming.